Flowmaster Exhaust System Kit

Also fits GT500.
American Thunder Kit
Axle-back 409S 11-12 MUSTANG GT PRO
Axle-back System 409S - Dual Rear Exit - AMT Pro Series - Moderate Sound
Axle-back System 409S - Dual Rear Exit - AMT Pro Series - Moderate Sound - Ford Mustang
Exhaust System Kit
Fits 2011 to 2012 Ford Mustang GT with a 5.0L or 5.4L V8 engine.
Flowmaster, axle-back, dual rear exit, american thunder, AMT Pro Series, 409S, 817109
The Axle-back kit offers an alternative to a complete Cat-back system. It's just the ticket for those looking for power enhancement and improved sound without busting the bank. With easy fit in mind, these systems are mandrel bent for maximum efficiency and include specially selected 3.00 in. Pro Series Shorty mufflers with attractive 4.00 in. polished stainless steel tips. This American Thunder system delivers an moderate performance sound, and like all Flowmaster systems delivers improved power, throttle response and mileage. Designed for an easy fit, the system includes all necessary parts and hardware for an easy, at home installation.